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What are these possibilities? You only get IP and client side information that client is _willingly_ sending to you. So if a script/user/bot/etc tells it's Fire
by kabacha 7y ago
What are these possibilities? You only get IP and client side information that client is _willingly_ sending to you. So if a script/user/bot/etc tells it's Firefox from 1.2.3.4 then all you know that it's a request from 1.2.3.4 that says it's Firefox. You can ask it to run Javascript code but that's beyond classic web interaction and then again you need to trust the client.
This interaction is impossible to be trustless thus every client can only be served based on their IP or some convoluted, hack exchange that is cat-and-mouse game at best.